Speed of light: Fastest speed in the universe or not?

[DGFone]

To add to Woeler's comment: Time is directly connected to the 'space-time continuum' which is effected by gravity. Lots of gravitational force effects time, which is why when you get really close to a black hole's center of mass, where gravity is nearing infinity, time, which is inversely related, halts to a near standstill.

And you can have rates not related to time, but that's a moot point.